Te tukanga whakaputa me te whānuitanga o te tono o te konutai carboxymethyl cellulose (CMC)

Ko te konutai carboxymethyl cellulose (CMC) he cellulose ether wairewa-wai, mekameka tika, he mea hanga mai i te cellulose tūturu me te waikawa chloroacetic mā te whakarerekētanga matū. Ko tana otinga wai he mahi whakamātotoru, hanga kiriata, here, pupuri wai, tiaki colloidal, emulsification me te whakatārewatanga, ā, ka taea te whakamahi hei flocculant, hei kaihoko chelating, hei emulsifier, hei whakamātotoru, hei kaihoko pupuri wai, hei kaihoko rahi, hei rauemi hanga kiriata, me ētahi atu, e whakamahia whānuitia ana i roto i te kai, te rongoā, te hikohiko, ngā patupatu pepeke, te hiako, te kirihou, te tā, te uku, te ahumahi matū o ia rā me ētahi atu mara.

Ko te konutai carboxymethyl cellulose he paura totoka, he kirikiri, he muka rānei i ētahi wā, he mā, he kōwhai mārama rānei te tae, kāore he kakara motuhake, he matū macromolecular, he kaha te makuku, ka taea te rewa i roto i te wai, ka hanga he otinga matotoru me te māramatanga teitei i roto i te wai. Kāore e rewa i roto i ngā otinga rauropi whānui, pērā i te etanoru, te etera, te chloroform me te benzene, engari ka taea te rewa i roto i te wai, he puhoi te rewa tika i roto i te wai, engari he tino nui tonu te wairewatanga, ā, he matotoru te otinga wai. He pumau ake te totoka i roto i te taiao whānui, nā te mea he mimiti wai me te haumākū motuhake, i roto i te taiao maroke, ka taea te tiaki mo te wa roa.

① Tukanga whakaputa

1. Tikanga wai

He tukanga whakaputa wawe te tukanga wai-waro i roto i te whakaritenga ahumahi o te konutai carboxymethyl cellulose. I roto i tēnei tukanga, ka tauhohe te cellulose alkali me te kaihoko etherifying i roto i te otinga wai kei roto ngā katote hāora kore utu, ā, ka whakamahia te wai hei reo tauhohe i roto i te tukanga tauhohe, me te kore he whakarewa waro.

2. Tikanga whakarewa

Ko te tikanga whakarewa he tikanga whakarewa waro, he tukanga whakaputa i whakawhanakehia i runga i te tikanga wai hei whakakapi i te wai ki te whakarewa waro hei reo tauhohenga. He tukanga whakapūkara me te whakaetere i te cellulose kawakore me te waikawa monochloroacetic i roto i te whakarewa waro. E ai ki te nui o te reo tauhohenga, ka taea te wehewehe ki te tikanga pokepoke me te tikanga paru kaukau. Ko te nui o te whakarewa waro e whakamahia ana i roto i te tikanga penupenu he nui ake i tera o te tikanga pokepoke, ā, ko te nui o te whakarewa waro e whakamahia ana i roto i te tikanga pokepoke ko te ōwehenga o te taumaha rōrahi o te nui o te cellulose, ko te nui o te whakarewa waro e whakamahia ana i roto i te tikanga penupenu ko te ōwehenga o te taumaha rōrahi o te nui o te cellulose. Ina whakaritea te sodium carboxymethyl cellulose mā te tikanga paru kaukau, kei roto te totoka tauhohenga i roto i te āhua paru, i te āhua whakatārewatanga rānei i roto i te pūnaha, nō reira ka kiia hoki te tikanga paru kaukau ko te tikanga whakatārewatanga.

3. Tikanga parai

Ko te tikanga parai te hangarau hou rawa atu hei whakaputa i te konutai carboxymethyl cellulose. Ehara i te mea ka taea anake e te tikanga parai te whakaputa i te konutai carboxymethyl cellulose parakore, engari ka taea hoki te whakaputa i te konutai carboxymethyl cellulose me te taumata whakakapinga teitei me te whakakapinga ōrite. Ko te tukanga whakaputa o te tikanga parai he penei: ko te penupenu miro kua hurihia hei paura ka tukuna ki te mīhini whakahāngai poutū kua rite ki te waipiro isopropyl, ā, ka tāpirihia te otinga konutai hauwai i te wā e whakaranua ana ka whakahāngaitia, ā, ko te pāmahana whakahāngai he tata ki te 20℃. I muri i te whakahāngaitanga, ka pupuhihia te rauemi ki te mīhini whakahāngai poutū, ā, ka tāpirihia te otinga waipiro isopropyl o te waikawa chloroacetic, ā, ko te pāmahana whakahāngai he tata ki te 65℃. E ai ki ngā whakaritenga whakamahinga me te kounga o te hua, ka taea te whakarerekē i te kukū whakahāngaitanga, te wā whakahāngaitanga, te nui o te kaihoko whakahāngaitanga me te wā whakahāngaitanga me ētahi atu tawhā tukanga.

② Te whānuitanga o te tono

1. Ehara i te mea he pai noa te CMC hei whakaū me te whakamātotoru i roto i ngā mahi kai, engari he tino pai hoki te pumau ki te tio me te rewa, ā, ka taea te whakapai ake i te reka o te hua me te whakaroa i te wā rokiroki.

2. I roto i te hopi horoi, ka taea te whakamahi i te CMC hei āpiha ārai-whakapoke anō, inā koa mō te pānga ārai-whakapoke anō o te papanga muka hangai hydrophobic, he pai ake i te muka carboxymethyl.

3. I roto i te keri hinu, ka taea te whakamahi i te wai hei tiaki i ngā puna hinu hei whakau paru, hei pupuri wai hoki. Ko te nui o ia puna hinu he 2 ~ 3t, ko ngā puna papaku he 5 ~ 6t, ko ngā puna hohonu he 5.

4. Whakamahia i roto i te umanga kakahu hei kaiwhakarahi, hei whakamātotoru i te paru tā me te tae, hei tā kakahu me te whakaotinga whakakeke.

5. Whakamahia hei paninga ārai-taunga, hei emulsifier, hei dispersant, hei leveling agent, hei sticky, ka taea te hanga i te wāhanga totoka o te peita kia taurite te tohatoha i roto i te whakarewa, kia kore ai te peita e whakarōpūtia mō te wā roa, engari ka whakamahia hoki ki roto i te putty.

6. He pai ake te whai huatanga o te whakamahi hei whakapūkara i roto i te tango i ngā katote konupūmā i te konutai glukonate, hei whakawhiti katione, ko te kaha whakawhiti tae atu ki te 1.6ml/g.

7. I roto i te umanga pepa e whakamahia ana hei kaihoko rahi pepa, ka taea te whakapai ake i te kaha maroke me te kaha mākū o te pepa me te ātete hinu, te mimiti waituhi me te ātete wai.

8. Hei hydrosol i roto i ngā mea whakapaipai, hei whakamātotoru i roto i te paraihe niho, ko tōna horopeta he 5%.

Kaihanga me te Kaiwhakarato Carboxymethyl Cellulose（CMC） Hokomaha | EVERBRIGHT (cnchemist.com)